Key features

• •【What it does】: The HT12D chip is a CMOS series 12-bit RF decoder, and the HT12E chip is the corresponding encoder.Mainly used for RF and IR modules, which can be directly connected to microcontrollers.
• •【HT12E Encoder】: The main function of the HT12E encoder is to encode 12-bit parallel input data and forward it to the output pin.Of these 12 bits, 8 of them come from address pins and the rest come from data input pins.
• •【HT12D Decoder】: The HT12D is designed using low-power CMOS technology, which provides the decoder with low noise immunity.It is a 12-bit decoder, using 8 bits for address and 4 bits for data.
• •【A Perfect Match】: Neither can work alone, each needs to work together with the other.The HT12D is the best decoder for the HT12E as both are 12-bit and have the same number of address and data pins.
• •【Working principle】: When using HT12D, the pin connection should meet its requirements.First, connect the power source.Then connect it to the message receiving module, which can be an RF receiver or an infrared receiver.Then connect the decoder to the receiving device.Keep the VT pin on the IC high.
• •【How to use】: HT12E can control transmission through external signal.Most of the time, the control pin remains active, but there are special security situations where this can be controlled.The encoder signal is always encoded at the oscillator speed.